20000
6
20
1
a 0 2040
a 1 2040
w 1 2040
w 1 510
w 1 510
w 1 2040
w 0 1020
w 1 2040
w 0 510
w 1 2040
f 1
a 2 48
a 3 4072
f 3
a 4 4072
f 0
f 2
a 5 4072
f 4
f 5
